Being punched in the back of the head's pretty bad.
If someone does that to you after you've made it clear you don't want to fight while having a lot of people with him on his side, and you have a weapon on you, you will use it in self defense.
And I doubt most of us or the kids know anything about stabbing or being stabbed or what's going to stop someone or what's not. But in all honesty, if you stabbed him enough to stop him without killing him, and he already tried attacking you? I'm willing to bet next time he is totally alright with initiating with a weapon of his own. Not to mention, you will get the **** sued out of you.
Might've been far less sloppy if he didn't have a weapon at all, but who knows where that'd go too. Just using your hands and feet can be as deadly as any weapon, especially when on cement. Easy broken bones, concussions, brain damage, etc, and the victim shouldn't have to go through this pain or risk if he can defend himself.
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